化简Sin(2x+π/6)+Sin(2x—π/12)
化简sin(2π+x)cos(π-x)sin(π-x)/cos(x-π)sin(-π-x)sin(π+x)
已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)
sin(3π/2-x)化简
化简:2cos2x+2sin^2 x+cos(-x)分之sin2x+sin(π-x)=___________
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
化简 cos^2(x)*sin^2(x)-sin^2(x)
化简 cos^(2)(x)*sin^(2)(x)-sin^(2)(x)
——————sin(2x+π) 等于sin(2x)吗?
化简sin(2x+π/3)-(根号3)sin²x+sinxcosx+(根号3)/2
1.已知sin(π/6-x)=1/4,sin(π/6+2x)=?
化简函数fx=sin(2x+π/6)+2sin^2x
已知函数f(x)=2cos(x-π/6)sin(x+π/6)-√3*(sin(x-π/6))^2+sin(x-π/6)c